68216122732836 has 288 divisors, whose sum is σ = 179452959522816. Its totient is φ = 20137336128000.

The previous prime is 68216122732819. The next prime is 68216122732909. The reversal of 68216122732836 is 63823722161286.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14858660901 + ... + 14858665491.

Almost surely, 2^{68216122732836} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68216122732836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89726479761408).

68216122732836 is an abundant number, since it is smaller than the sum of its proper divisors (111236836789980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68216122732836 is a wasteful number, since it uses less digits than its factorization.

68216122732836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6643 (or 6628 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 57.

The spelling of 68216122732836 in words is "sixty-eight trillion, two hundred sixteen billion, one hundred twenty-two million, seven hundred thirty-two thousand, eight hundred thirty-six".